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20 cities with the worst traffic in the world

Photos Logo Photos | Slide 1 of 21: Male driver ride a car during evening traffic jam. Drive in the night city. Inside view.

TomTom – a Dutch navigation technology company — has prepared a Traffic Index that features data about congestion levels in 403 cities around 56 countries. The percentage of congestion level is calculated by measuring the amount of extra travel time taken by drivers in one year. The statistics are analyzed from GPS data gathered through navigation devices, in-dash systems and smartphones, in 2017 and 2018. Here is the countdown to the list of top 20 cities with the worst traffic flow.

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